<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
  <style>
    *{margin:0; padding:0;}
    p{font-size:30px;}
    .icon-arr{display:inline-block; width:20px; height:20px; vertical-align:0px; background:url(http://qn.yanmingweb.com/images/arr.png);}
  </style>
</head>
<body>
  <p> 文字图标对齐 <i class="icon-arr"></i></p>
</body>
</html>